refactor(ui): move Documentation and System Info from admin to help panel

Remove Documentation and System Info nav items from the admin sidebar
System group — they now live in the help-center panel. The admin
System group retains only Settings. Removes unused $canViewSystemInfo
variable from the sidebar template.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

templates/partials/app-main-aside.phtml

@@ -17,7 +17,6 @@ $canViewJobs = (bool) ($layoutAuth['can_view_jobs'] ?? false);
 $canViewDocs = (bool) ($layoutAuth['can_view_docs'] ?? false);
 $canViewMailLog = (bool) ($layoutAuth['can_view_mail_log'] ?? false);
 $canViewStats = (bool) ($layoutAuth['can_view_stats'] ?? false);
-$canViewSystemInfo = (bool) ($layoutAuth['can_view_system_info'] ?? false);
 $docsDefaultSlug = DocsCatalogService::defaultSlug();
 $docsDefaultPath = 'admin/docs/' . $docsDefaultSlug;
 $hasOrganization = $canViewTenants || $canViewDepartments || $canViewUsers;
@@ -25,7 +24,7 @@ $hasUsersSection = $canViewRoles || $canViewPermissions;
 $hasAutomationSection = $canViewImports || $canViewJobs;
 $hasMonitoringSection = $canViewStats;
 $hasLogsSection = $canViewMailLog;
-$hasSystemSection = $canViewSettings || $canViewSystemInfo || $canViewDocs;
+$hasSystemSection = $canViewSettings;
 $hasAdminPanel = layoutHasAdminPanel($layoutAuth);
 
 // Declarative nav config for admin panel groups
@@ -146,20 +145,6 @@ $adminNavGroups = [
                 'visible' => $canViewSettings,
                 'withTenant' => false,
             ],
-            [
-                'label' => t('System Info'),
-                'path' => 'admin/system-info',
-                'active' => navActive('admin/system-info', true),
-                'visible' => $canViewSystemInfo,
-                'withTenant' => false,
-            ],
-            [
-                'label' => t('Documentation'),
-                'path' => $docsDefaultPath,
-                'active' => navActive('admin/docs', true),
-                'visible' => $canViewDocs,
-                'withTenant' => false,
-            ],
         ],
     ],
 ];